Teen Mom OG has documented several brand-new additions entering the world -- Catelynn giving birth to Novalee and Maci's mini-me Jayde making her grand debut. And during tonight's episode, Maci -- who has been chronicling her third pregnancy this season -- joyfully welcomed her second son into the world. But how did this experience differ from her previous trips to the delivery room?

"Maverick's birth was different than my first two experiences because I wasn't as nervous or anxious," the Tennessean reveals in the clip above.

But a special guest also made the milestone event that much more memorable.

"Bentley was in the room while I was giving birth so, for me, that was a huge bonding moment for us and really cool for him to experience his brother actually being born," she added.

To hear Maci open up about her third munchkin -- including how he's alike/different from his siblings -- watch the video above. And be sure to keep tuning in to Teen Mom OG every Monday at 9/8c.